From patchwork Mon Jan 23 20:35:55 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jason Gunthorpe X-Patchwork-Id: 13112944 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7559EC54EAA for ; Mon, 23 Jan 2023 20:36:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232693AbjAWUgW (ORCPT ); Mon, 23 Jan 2023 15:36:22 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36882 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232645AbjAWUgT (ORCPT ); Mon, 23 Jan 2023 15:36:19 -0500 Received: from NAM10-MW2-obe.outbound.protection.outlook.com (mail-mw2nam10on2081.outbound.protection.outlook.com [40.107.94.81]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2287116335; Mon, 23 Jan 2023 12:36:14 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=AErqawBAwEqNfxqkBtXnrPBpAcyd7KwruTaxW0eL/9yT78bttLlTg/fsMv40IurksT0u5Xhndrc5eEDSgdd+BheunYomM92pA+h6eoDNrnKffB9U0B2yHMqozfbV1ND20/1/ca90OpizsvTniCFWcRyoyLjKGx9ZaynUV1531WfA9MDLk7viwb3w3QCTeFPMVM9MSEFK14XAsOtxeLD7NJE1WEuYRClJucB0DO5ZDcbw8GqcIFjsvH8qy/t5LSRrCF/hA7PFFFZdMhcBaPahEb0NRAP5TYy1mdwbwuUpjDP2Uvl0D9y1Iq3qn5lJP6hfHP+4kTjLfE92+H2bNB//nA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=0Hqi9IkuwfnBrJkCJrDC5DL74fTccWNtsKEVZvqfdAs=; b=WZpJCvFTQYyNcG9JYZDuAFQRBT8NzkPdIvch0tyi8uY1LsZcTeSv2QftmLFHirxEts0RZcFIhfV4ylM0gXGwFh+yjrts/QVy8aWfu2vxYvVhtvthBmPsZY/tywgltExRMlmMeUdQF2yYBt+sLaT8JuKL7tBm6Gi03iZ9iEYVUCxAGN/aZ6Dg+/3mC1vUcXQs3XHdNKwoiKRTdKBBlWRX8Q78QvIv9d3GvPH08rXhD3UsoTBEEWcmr2q8bCPFxgtbd87KKp9M+VyLxUI2++SqPN38q1IcRqXwBs6FpbDxqKX7jF15RQIUM3Lamu+TM+a47zfgmNepwXa3FK4m9g6AoA== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=nvidia.com; dmarc=pass action=none header.from=nvidia.com; dkim=pass header.d=nvidia.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=Nvidia.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=0Hqi9IkuwfnBrJkCJrDC5DL74fTccWNtsKEVZvqfdAs=; b=EPU5ofcLJJAQg8p48ajKcIWnwz8Y8eBsJyFhyIFoYFz81NExcNYM1MLRulcU6UpSfllM66BOPgw0BUmxM5akCY9bxnuIw26z9DqgKaufQFGkuqlWLGvKP+Nnb+92xidi1EQR9NB0x8/dMwwxzdebrpD+wsHC5BAmJ0TOdpx76hYQc5qmjINPZWjDi0QV3jYWirgER3tnGBvbvQNjWxnnTTgg9ePv4tkKebYqkIkpvlY3nO3F90G7dWl5x8N3kBRral7cj9ZnEAAjFtcjBSad3ESxoA1Zzf51V1dMIF0zfCBMPqB3VvdM8F3lkzcna5ySeAzjvNgIrYxmOkus+dTeAA== Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=nvidia.com; Received: from LV2PR12MB5869.namprd12.prod.outlook.com (2603:10b6:408:176::16) by BL3PR12MB6571.namprd12.prod.outlook.com (2603:10b6:208:38e::18) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6002.25; Mon, 23 Jan 2023 20:36:05 +0000 Received: from LV2PR12MB5869.namprd12.prod.outlook.com ([fe80::3cb3:2fce:5c8f:82ee]) by LV2PR12MB5869.namprd12.prod.outlook.com ([fe80::3cb3:2fce:5c8f:82ee%4]) with mapi id 15.20.6002.033; Mon, 23 Jan 2023 20:36:05 +0000 From: Jason Gunthorpe To: Lu Baolu , Joerg Roedel , Kevin Tian , Matthew Rosato , Robin Murphy Cc: Alex Williamson , ath10k@lists.infradead.org, ath11k@lists.infradead.org, Christian Borntraeger , dri-devel@lists.freedesktop.org, iommu@lists.linux.dev, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org, linux-media@vger.kernel.org, linux-rdma@vger.kernel.org, linux-remoteproc@vger.kernel.org, linux-s390@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-tegra@vger.kernel.org, linux-wireless@vger.kernel.org, netdev@vger.kernel.org, nouveau@lists.freedesktop.org, Niklas Schnelle , virtualization@lists.linux-foundation.org Subject: [PATCH v3 02/10] iommu: Remove iommu_map_atomic() Date: Mon, 23 Jan 2023 16:35:55 -0400 Message-Id: <2-v3-76b587fe28df+6e3-iommu_map_gfp_jgg@nvidia.com> In-Reply-To: <0-v3-76b587fe28df+6e3-iommu_map_gfp_jgg@nvidia.com> References: X-ClientProxiedBy: BL1PR13CA0253.namprd13.prod.outlook.com (2603:10b6:208:2ba::18) To LV2PR12MB5869.namprd12.prod.outlook.com (2603:10b6:408:176::16) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: LV2PR12MB5869:EE_|BL3PR12MB6571:EE_ X-MS-Office365-Filtering-Correlation-Id: 8a66bdee-2237-44b8-e925-08dafd81729c X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:LV2PR12MB5869.namprd12.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230022)(4636009)(346002)(39860400002)(136003)(366004)(376002)(396003)(451199015)(5660300002)(316002)(8936002)(7416002)(41300700001)(38100700002)(110136005)(36756003)(186003)(83380400001)(478600001)(6666004)(86362001)(6512007)(6506007)(6486002)(26005)(66476007)(8676002)(66946007)(4326008)(2616005)(54906003)(2906002)(66556008)(4216001);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 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 X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-Network-Message-Id: 8a66bdee-2237-44b8-e925-08dafd81729c X-MS-Exchange-CrossTenant-AuthSource: LV2PR12MB5869.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 23 Jan 2023 20:36:04.3246 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: C1AgasB/w+6OITMEYLI7M0v2PE7s8QcDDv441Il5Vjini5ivI1GMCMpoZn/B4q5H X-MS-Exchange-Transport-CrossTenantHeadersStamped: BL3PR12MB6571 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org There is only one call site and it can now just pass the GFP_ATOMIC to the normal iommu_map(). Reviewed-by: Kevin Tian Signed-off-by: Jason Gunthorpe --- drivers/iommu/dma-iommu.c | 2 +- drivers/iommu/iommu.c | 7 ------- include/linux/iommu.h | 9 --------- 3 files changed, 1 insertion(+), 17 deletions(-) diff --git a/drivers/iommu/dma-iommu.c b/drivers/iommu/dma-iommu.c index 8bdb65e7686ff9..7016db569f81fc 100644 --- a/drivers/iommu/dma-iommu.c +++ b/drivers/iommu/dma-iommu.c @@ -713,7 +713,7 @@ static dma_addr_t __iommu_dma_map(struct device *dev, phys_addr_t phys, if (!iova) return DMA_MAPPING_ERROR; - if (iommu_map_atomic(domain, iova, phys - iova_off, size, prot)) { + if (iommu_map(domain, iova, phys - iova_off, size, prot, GFP_ATOMIC)) { iommu_dma_free_iova(cookie, iova, size, NULL); return DMA_MAPPING_ERROR; } diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index 7dac062b58f039..9412b420d07257 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -2381,13 +2381,6 @@ int iommu_map(struct iommu_domain *domain, unsigned long iova, } EXPORT_SYMBOL_GPL(iommu_map); -int iommu_map_atomic(struct iommu_domain *domain, unsigned long iova, - phys_addr_t paddr, size_t size, int prot) -{ - return iommu_map(domain, iova, paddr, size, prot, GFP_ATOMIC); -} -EXPORT_SYMBOL_GPL(iommu_map_atomic); - static size_t __iommu_unmap_pages(struct iommu_domain *domain, unsigned long iova, size_t size, struct iommu_iotlb_gather *iotlb_gather) diff --git a/include/linux/iommu.h b/include/linux/iommu.h index d2020994f292db..521cd79700f4d8 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -468,8 +468,6 @@ extern struct iommu_domain *iommu_get_domain_for_dev(struct device *dev); extern struct iommu_domain *iommu_get_dma_domain(struct device *dev); extern int iommu_map(struct iommu_domain *domain, unsigned long iova, phys_addr_t paddr, size_t size, int prot, gfp_t gfp); -extern int iommu_map_atomic(struct iommu_domain *domain, unsigned long iova, - phys_addr_t paddr, size_t size, int prot); extern size_t iommu_unmap(struct iommu_domain *domain, unsigned long iova, size_t size); extern size_t iommu_unmap_fast(struct iommu_domain *domain, @@ -778,13 +776,6 @@ static inline int iommu_map(struct iommu_domain *domain, unsigned long iova, return -ENODEV; } -static inline int iommu_map_atomic(struct iommu_domain *domain, - unsigned long iova, phys_addr_t paddr, - size_t size, int prot) -{ - return -ENODEV; -} - static inline size_t iommu_unmap(struct iommu_domain *domain, unsigned long iova, size_t size) {